<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
    let seconds = +prompt('请输入秒数')
    function getTime(t) {
      if (t <= 0) {
        alert('必须大于0')
        return
      }
      let h = parseInt(t / 60 / 60 % 24)
      let m = parseInt(t / 60 % 60)
      let s = parseInt(t % 60)
      h = h < 10 ? '0' + h : h
      m = m < 10 ? '0' + m : m
      s = s < 10 ? '0' + s : s
      return `转换完毕的结果为：${h}小时${m}分钟${s}秒`
    }
    document.write(getTime(seconds))
    </script>
</body>
</html>